Apparatus for coating cup-shaped articles



Jan. 19, 1954 E. K. WILL IAMS ETAL 66,

APPARATUS FOR COATING CUP-SHAPED ARTICLES Filed April 12, 1951 4 SheetsSh eet 1 INVENTORS: K. WILLIAMS L. WR l GH T ATTORNEY 1954 E. K. WILLIAMS ET AL 2,665,411

APPARATUS FOR COATING CUP-SHAPED ARTICLES Filed April 12, 1951 4 Sheets-Sheet 2 E. K. WILLIAMS B. L.'WR|GHT ATTORNEY INVENTORS 1954 E. K. WILLIAMS ETAL APPARATUS FOR COATING CUP-SHAPED ARTICLES 4 Sheets-Sheet 5 Filed April 12, 1951 Y E mm m v S m. T a g a H M u 7 7 /////J V L% 6 m L R mm l w A T. ww n m .0 5 a In]. u u III E No. E "o W u 2- E mm ll n: a Ill Q I'll Om O 09 a c mm r |L m .N. mm. H mm 0m 5 l or mm um .i l. III-Ill- NE a mu m i h 6 ow 8 mm. w 8

1954 E. K. WILLIAMS ETAL 2,666, 1

- APPARATUS FOR COATING CUP-SHAPED ARTICLES Filed April 12, 1951 4 Sheets-Sheet 4 I l l/l 1 'I [NW INVENTORS 1 E. K. WILLIAMS B. WRIGHT By m ATTORNEY Patented Jan. 19, 1954 UNITED STATES'PATENT OFFICE APPARATUS FOR COATING CUP-SHAPED ARTICLES Application April 12, 1951, Serial No. 220,595

3 Claims.

-This invention relates to apparatus for coating articles, and more particularly to apparatus for printing ink coatings on cup-shaped'articles.

An object of the invention is to provide new and improved apparatus for coating articles.

after which the coating is dried to a hard condi- A further object of the invention is to provide apparatus for printing ink coatings on cup shaped articles.

Another object of the invention is to provide apparatus for coating the generally frustoconically shaped bottom portions of cup-shaped articles.

An apparatus illustrating certain features of the invention may include a printing member for entering a cup-shaped article and printing the entire bottom portion thereof. The printing member may include a frustoconical platen composed of highly compressible material and an inking roll composed of a highly compressible material for applying a coating liquid to the printing face of the printing member.

A complete understanding of the invention may be obtained from the following detailed description of an apparatus forming a specificembodiment thereof, when read in conjunction with the appended drawings, in which Fig. 1 is a fragmentary, side elevational view of an apparatus forming one embodiment of the invention with portions thereof broken, away to show .some of the elements more clearly,

Fig. 2 is a fragmentary, vertical section taken along line 22 of Fig. 1;

Fig. 3 is a generally, horizontal section taken' along line 3-3 of Fig. 1,

Fig. 4 is a fragmentary, stepped, horizontal section taken along line 4-4 of Fig. 1;

Fig. 5 is a generally, vertical section taken along line 5-5 of Fig. 1;

Fig. 6 is a vertical section taken along line li 6 of Fig. 1; Fig. 7 is a generally, vertical section taken along line 1-1 of Fig. 1;

Fig. 8 is a fragmentary, rear elevational view 7 taken along line 88 of Fig. 1;

Fig. 9 is a fragmentary, horizontal "section taken along line 9 9 of Fig. 4;

Fig. 10 is a fragmentary, vertical section taken along line Ill-l0 of Fig. 1, and

Fig. 11 is a fragmentary, side elevation of the apparatus shown in Fig. 1 with portions thereof broken away.

Referring now in detail to the drawings, there isshown therein an apparatus for applying a printing ink, such as, for example,'linseed oil base printingink to aface 20 of a dial number plate 21 composedof cellulose'acetate' butyrate,

tion. The face 20 is of a generally frustoconical shape. The dial number plate 2! is placed in asocket 22 formed in a holder 23 of a drawer 24, which is movable into and out of a housing 25 along a guideway 26 by a handle 2! (Fig. 1) The handle is secured to the drawer 24 by rods 3030 having stops 3l-3l formed on the ends thereof, and springs 32 press the handle 21 to the left, as viewed in Fig. 1. To load the apparatus, the operator places the number plate 2| in the holder 23, and pushes the drawer 24 into the housing 25 until a stop 35 fixed to the holder engages the housing, in which position the dial number plate 2 I is properly located beneath a printing pad 36.

The operator pushes the handle 21 farther to the right, as viewed in Fig. 1, and the rods 30-30 engage arms -40 (Figs. 1 and 7) fastened rigidly to a shaft 4| and turn the shaft 41 in a counterclockwise direction, as viewed in Fig. l. This turns an arm 42 fastened to the shaft 4| in a counterclockwise direction to pull downwardly a spring-pressed lever 45 through a link 46 to actuate a valve 41. Actuation of the valve 41 causes air under pressure to be supplied to the upper end of a cylinder 50, and connects the lower end thereof to exhaust, thereby driving a piston 5| downwardly, as viewed in Fig. 1. The piston moves downwardly a holder 52 (Fig. 2) supporting the printing pad 36, and moves the pad 36 downwardly into engagement with the face 20 of the number plate 2|.

56 formed on the dial number plate 2 I, the oper'- ator may release the handle 2'! to permit theto the lower end of the cylinder to and is exhausted from the'upper end thereof, whereby the piston 5 I, the holder 52 and the pad 36 are moved T upwardly to the retracted positions thereof shown irrFigs.-1 and 2.

Whenever-the holder 52 is moved downwardly,f an arm Ell-fixed to a shaft 6| is pivoted in a coun terclockwise direction, as viewed in Fig. 1, by

gravity, and swings an arm" 62 in a counterclock wise direction. The arm 62 swings a pin 65 carried thereby downwardly to the right into engagementwith a notch 66 formed in a pivotally mounted pull rod- 61, which is in a retracted position at this time. 'When the holder 52 is raised thereafter, it" swings the arm in a clockwise direction and the pin pulls the pull rod 61 to the left to its operating position, as shown in fulllines in Fig. 1, 'against the action of a springpressed. leverlll o'f a four-way valve H control-ling- The pad 36 has an an nular groove 55 therein designed to fit over a rib roll ll.

the roll I00 is rotated by the roll I01, the ink from the surface of the roll I00 is applied to the Then the roll l0l transfers this ink to the floating roll I30, which is continuously reciprocated longitudinally relative to the roll l0! to spread the ink uniformly onto the roll 85, upon which the roll I30 also rests and is driven by. The roll 85 applies the ink to the roll 8| preparatory to the coating operation. Meanwhile, as soon as the roll 8| is moved back to its position of rest, the operator pulls the drawer 24 out of the housing 25 and removes the dial number plate 2 I. The operation described hereinabove then may be repeated with another uncoated number plate (not shown).

The apparatus described hereinabove supplies uniform ink coatings to non-fiat surfaces of cupshaped articles with a minimum of attention by the operator and works ,very rapidly. The unloading and loading operation may be effected while the holder 52 and the pad 36 is being reinked, so that the apparatus may be used to coat articles at a high rate of speed.

It is to be understood that the above-described arrangements are simply illustrative of the application of the principles of the invention. Numerous other arrangements may be readily devised by those skilled in the art which will embody the principles of the invention and fall within the spirit and scope thereof.

What is claimed is:

1. A coating apparatus, which comprises a housing having a trackway therein, a cylinder mounted in the housing extending generally transversely of the trackway, a piston operable by the cylinder, a stamp pad carried by the piston and movable thereby toward and away from the trackway, a drawer slidable along the trackway into and out of the housing, a valve for controlling the operation of the piston and the cylinder, lost-motion means carried by the drawer for actuating the valve to cause the piston to move the pad into engagement with an article carried by the drawer and to move the pad out of engagement with the article, a series of inking rolls, a pressing roll, a second cylinder mounted pivotally, a second piston carrying the pressing roll and operable by the second cylinder, a second valve for controlling the second cylinder, a pull rod, means operable by the pad for actuating the pull rod as the pad is moved away from an article to actuate the valve to cause the second piston to move the pressing roll out of engagement with the inking rolls and across the pad in compressive engagement therewith, means carried by the pressing roll for actuating the pull rod to reverse the second valve and to retract the pressing roll from the pad back into engagement with the inking roll, a fountain roll, a transfer roll movable between a position engaging the fountain roll and a position engaging one of the inking rolls, pawl and ratchet means for rotating the ink roll, a fountain containing a supply of ink in engagement with the fountain roll, means for sequentially moving the transfer roll out of engagement with the inking rolls and into engagement with the fountain roll and for turning the fountain roll through the pawl and ratchet means through a predetermined angle to apply a predetermined stripe of ink to the transfer roll, and means for moving the transfer roll out of engagement with the fountain roll and into engagement with one of the inking rolls.

2. A coating apparatus, which comprises a housing having a trackway therein. a cylinder mounted in the housing extending generally transversely of the trackway, a piston operable by the cylinder, a resilient, cup-shaped stamp pad carried by the piston and movable thereby toward and away from the trackway, a drawer slidable into and out of the housing along the trackway for supporting a cup-shaped article, a valve for controlling the operation of the piston and the cylinder, lost-motion means carried by the drawer for actuating the valve to cause the piston to move the pad into engagement with the cup-shaped article carried by the drawer and to move the pad out of engagement with the article, a series of inking rolls, a resilient pressing roll, a second cylinder mounted pivotally, a second piston carrying the pressing roll and operable by the second cylinder, a second valve for controlling the second cylinder, a pull rod, means operable by the pad for actuating the pull rod as the pad is moved away from an article to actuate the valve to cause the second piston to move the pressing roll out of engagement with the inking rolls and across the pad in compressive engagement therewith, means carried by the pressing roll for actuating the pull rod to reverse the second valve and to retract the pressing roll from the pad back into engagement with the inking roll, a fountain roll, a transfer roll movable between a position engaging the fountain roll and a position engaging one of the inking rolls, pawl and ratchet means for rotating the inking rolls, a fountain containing a supply of ink in engagement with the fountain roll, means for sequentially moving the transfer roll out of engagement with the inking rolls into engagement with the fountain roll and for turning the fountain r011 by the pawl and ratchet means through a predetermined angle to apply a predetermined stripe of ink to the transfer roll, and means for moving the transfer roll out of engagement with the fountain roll into engagement with one of the inking rolls.

3. A coating apparatus, which comprises a housing, a cylinder mounted in the housing, a piston operable by the cylinder, a resilient stamp pad carried by the piston and reciprocable thereby, a holder slidable into and out of the housing for moving an article into and out of alignment with the cylinder, means operable by the holder for actuating the cylinder to cause the piston to move the pad into engagement with an article carried by the holder and to move the pad out of engagement with the article, a series of inking rolls, a resilient pressing roll, a second cylinder mounted pivotally, a second piston carrying the pressing roll and operable by the second cylinder, and means for actuating the second cylinder to reciprocate the pressing roll out of engagement with the inking rolls and across the pad in compressive engagement therewith and back into engagement with the series of inking rolls.

EDWIN K. WILLIAMS. BEN L. WRIGHT.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 879,849 Biette Feb. 25, 1908 1,926,152 Kinney Sept. 12, 1933 2,035,971 Magnus'son Mar. 31, 1936 2,132,495 Robbins et a1 Oct. 11, 1938 2,171,742 Dombre Sept. 5, 1939 2,207,144 Cooper July 9, 1940 2,369,871 Trollen Feb. 20, 1945 

